Gas-cock.



No. 888,501. PATENTED MAY 26, 1908.

w. E. YHOLDBRNESS & H. w. EVANS.

GAS COCK.

, APPLICATION FILED JUNE 4. 1907.

Ill!

WITNESSES. INVENTORS [Maid Arr n/ STATES PAFENT @FFIQ.

WILLIAM ED. HOLDERNESS AND HENRY WILBER EVANS, OF NEW YORK, N. Y.

GAS-COCK.

To all whom it may concern:

Be it known that we, WILLIAM E1). HOL- DERNESS and HENRY WILBER EvANs, citi- Zens of the United States, residing in New York, county of New York, and State of New York, have invented certain new and useful Improvements in Gas-Cocks, of which the following is a s ecification. Various appliances are comprised in the prior art for preventing flow of gas accidentally. The appliances of the prior art however, are subjectto one important criticism, to wit: that of exposing to danger the mechanism by which the flow preventing device is locked.

An improvement disclosed in this application advances the art to which safety gas cocks appertain, by placing the lockingmechanism beyond the reach of interference, accidental or otherwise, and in providing instrumentalities whereby the valve may be maintained in the valve-seat by instrumentalities other than those usually employed.

An embodiment of the invention is illustrated on the accompanying sheet of drawings, whereon Figure 1 illustrates a longitudinal sectional view of a gas cook with a key illustrated partially in elevation, Fig. 2 transposes that view into an end one, Fig. 3 is a view similar to that disclosed in Fig. 1, with the exception that the key is introduced into a dome, and means are illustrated whereby to hold the key into the dome by means other than that illustrated in Fig. 1; Fig. 4 is an end view of the device shown in Fig. 3, and Fig. 5 further illustrates means to lock the valve in the valve-casing.

To the various parts, similar characters of,

reference are applied.

A suitable connection 5, which maybe internally provided with a screw threaded portion 6, and a nozzle 7, is associated with a barrel 8 having a valve-seat into which a valve 9 may be introduced; the latter having an opening 10 which registers with an opening 11 in the connection when the valve is Specification of Letters Patent.

Application filed June 4, 1907.

Patented May 26, 1908.

Serial No. 377,126.

opened, and which extends across that opening when the valve is closed. In the case of Figs. 1 and ,2, this valve may beheld in place by a set screw 12, mounted upon a washer 13, while in the case of Figs. 3 and 4 the valve 14 may be introduced into a dome 15 and there held in place by a stud 16 adapted to play,

.upon a Wall 17 of the slot or recess 18, and

said wall, in the present instance, is provided with an opening 19 so that the key may be removed from its seat at will, when the same is intermediately disposed of its open or closed position.

In the case of Fig. 5, the barrel may be internally provided with a groove 28 for the reception and movement of a pin 21 which is made longer than in the other forms and which may enter the groove through pas-- sage 29.

By reference to Fig. 1, and for the purpose of locking the valve or key in an open or closed position, it will be noted that thebarrel is provided with a series of recesses 20 (in the present case shown as openings) and this barrel may be provided with pairs of recesses diametrically opposed for the reception of a tooth or tongue 21 which may be carried by a lever 22 which may be suitably mounted as at 23, so that by moving the lever 22 upon its mounting 23, the pin or tongue 21 may recede from or advance into the recesses 20, and for the purpose of normally maintaining the tongue in looking position, a suitable spring 24, in the present case occupies at one end, a recess 25 while the other end is situated against the lever 22 so that the latter is always in position to keep the pin 21 in place.

For the purpose of preventing the accidental removal of the valve shown in Fig. 3, the pin 16 may be provided with a tongue 26, which, when the tongue is set in an uppermost position, may turn in a recess 27 in the valve seat when the key is in proper position to let the tongue be turned. When the'tongue is laid fiatwise, it will pass over the opening 19.

The special details of construction as described may of course, be varied. We desire to claim the method of inclosing the locking instrumentalities so that they may be beyond reach of interference, which is a desirable feature of such a device; also a method of holding the plug-peg in the casing.

Having thus described this invention we claim In a device of the character described, the combination with a valve-casing, a valve, means to lock the valve in various positions within the casing, a groove in the casing and a projection on the valve whereby to hold the valve within said casing.

In witness whereof we have set our hands.

WM. ED. HOLDERNESS. HENRY WILBER EVANS.

Witnesses for William Ed. Holderness:

MAXIMILLIAN KoMow, W. ED. W. BARNACLO.

Witnesses for Henry Wilber Evans:

RAY LEVY, W. ED. W. BARNACLO. 

